8479747 has 2 divisors, whose sum is σ = 8479748. Its totient is φ = 8479746.

The previous prime is 8479741. The next prime is 8479769. The reversal of 8479747 is 7479748.

8479747 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8479747 - 2⁷ = 8479619 is a prime.

It is a super-2 number, since 2×8479747² = 143812218368018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8479697 and 8479706.

It is not a weakly prime, because it can be changed into another prime (8479741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4239873 + 4239874.

It is an arithmetic number, because the mean of its divisors is an integer number (4239874).

Almost surely, 2^8479747 is an apocalyptic number.

8479747 is a deficient number, since it is larger than the sum of its proper divisors (1).

8479747 is an equidigital number, since it uses as much as digits as its factorization.

8479747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 46.

The square root of 8479747 is about 2912.0005151098. Note that the first 3 decimals coincide. The cubic root of 8479747 is about 203.9205364608.

Subtracting from 8479747 its reverse (7479748), we obtain a palindrome (999999).

The spelling of 8479747 in words is "eight million, four hundred seventy-nine thousand, seven hundred forty-seven".